Ice core records of atmospheric carbon dioxide
Beneath the surface of Antarctica lies a near perfect record of changes in the atmosphere composition over hundreds of thousands of years. This unique archive allows us to reconstruct atmospheric […]
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Read more of: Ice core records of atmospheric carbon dioxide
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Collapse of a giant iceberg in a dynamic Southern Ocean marine ecosystem: in situ observations of A-68A at South Georgia
Read more of: Collapse of a giant iceberg in a dynamic Southern Ocean marine ecosystem: in situ observations of A-68A at South GeorgiaLarge icebergs (>20 km long) are responsible for most of the freshwater discharged into the Southern Ocean. We report on in situ and satellite observations made during the break-up phase around […]
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Measuring Low Plasma Density in the Earth’s Equatorial Magnetosphere From Magnetosonic Waves
Read more of: Measuring Low Plasma Density in the Earth’s Equatorial Magnetosphere From Magnetosonic WavesThe plasma density is one of the most fundamental quantities of any plasma yet measuring it in space is exceptionally difficult when the density is low. Measurements from particle detectors […]
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Detrital input sustains diatom production off a glaciated Arctic coast
Read more of: Detrital input sustains diatom production off a glaciated Arctic coastIn the Arctic and subarctic oceans, the relatively low supply of silicon (compared to other nutrients) can make it limiting for the growth of diatoms, a fundamental building block of […]
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A New Model of Electron Pitch Angle Distributions and Loss Timescales in the Earth’s Radiation Belts
Read more of: A New Model of Electron Pitch Angle Distributions and Loss Timescales in the Earth’s Radiation BeltsAs the number of satellites on orbit grows it is increasingly important to understand their operating environment. Physics-based models can simulate the behavior of the Earth’s radiation belts by solving […]
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Spicule morphology impacts stable silicon isotopic composition of sponge archives
Read more of: Spicule morphology impacts stable silicon isotopic composition of sponge archivesThe stable silicon isotopic composition of siliceous sponge skeletal elements, spicules, forms a potential proxy for past dissolved silicon (DSi) concentrations of bottom waters. Field-based studies have shown that there […]
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Hyperspectral leaf area index and chlorophyll retrieval over forest and row-structured vineyard canopies
Read more of: Hyperspectral leaf area index and chlorophyll retrieval over forest and row-structured vineyard canopiesAs an unprecedented stream of decametric hyperspectral observations becomes available from recent and upcoming spaceborne missions, effective algorithms are required to retrieve vegetation biophysical and biochemical variables such as leaf […]
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A large-scale transcontinental river system crossed West Antarctica during the Eocene
Read more of: A large-scale transcontinental river system crossed West Antarctica during the EoceneExtensive ice coverage largely prevents investigations of Antarctica’s unglaciated past. Knowledge about environmental and tectonic development before large-scale glaciation, however, is important for understanding the transition into the modern icehouse […]
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Measuring the impact of wharf construction on the Antarctic Benthos
Read more of: Measuring the impact of wharf construction on the Antarctic BenthosShallow water Antarctic marine macroepifaunal assemblages live in one of the most naturally disturbed marine environments due to the impact of icebergs scouring the seafloor. They are, however, amongst the […]
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Responses of the Pine Island and Thwaites Glaciers to Melt and Sliding Parameterizations
Read more of: Responses of the Pine Island and Thwaites Glaciers to Melt and Sliding ParameterizationsThe Pine Island and Thwaites glaciers are the two largest contributors to sea level rise from Antarctica. Here we examine the influence of basal friction and ice shelf basal melt […]
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Plastic ingestion and trace element contamination of Manx shearwaters Puffinus puffinus on the Faroe Islands
Read more of: Plastic ingestion and trace element contamination of Manx shearwaters Puffinus puffinus on the Faroe IslandsProcellariiform seabirds can accumulate high levels of plastic in their gastrointestinal tracts, which can cause physical damage and potentially provides a contamination route for trace elements. We examined plastic ingestion […]
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Antarctica is less isolated with increasing depth – evidence from pycnogonids
Read more of: Antarctica is less isolated with increasing depth – evidence from pycnogonidsNo other group of animals typifies the uniqueness of Antarctic life more than Pycnogonida (sea spiders), with 20% of all known species found in the Southern Ocean, and 64% of […]